The helicopter couldn't fly again for two days due to bad weather in region. Skies cleared this morning and aerial search was resumed. However, the search party found no sign of missing climbers, whereas the position of tracker showed evidence of an avalanche. Here is official press release.

"The reconnaissance was carried out in two phases, with a stop in between, at 06:00 a.m. (09:00 p.m., Pakistani time) to refuel and continue the search.

The helicopter has crossed the Ridge several times, arriving to fly until the 7,400m of altitude, to fix its focus, in the second flight, in the penultimate and last known position of Alberto and Mariano, without success.

Last position indicated by the Racetracker of Alberto Zerain, is where they found a plaque of snow detached that ended up forming a avalanche. Situation that, sadly, leads to rule out the possibility of survivors."